Screw compressor WALTER SF 22 DSP Input power 22 kW, air delivery 1.68–4.2 m³/min at 8 bar, two-stage, IE5 motor, 7-year warranty
Code: SF-22-DSP
Product detailed description
Smallest two-stage screw compressor WALTER SF 22 DSP
SF 22 DSP is the smallest two-stage screw compressor from WALTER. At 8 bar it delivers 1.68–4.2 m³/min, at 10 bar 1.52–3.8 m³/min, and it is manufactured only for these two pressures.
The two-stage block and the IE5 magnetic motor with inverter are housed in the smallest cabinet in the range, with a footprint of 1,500 × 1,037 mm. Two-stage compression is therefore no longer reserved only for large compressor rooms.
Configuration of this machine
- Two-stage screw block · direct drive 1:1 · IE5 magnetic motor with inverter
- Working pressure 8 or 10 bar
- Smallest cabinet in the range: 1,500 × 1,037 × 1,273 mm, 738 kg
- G 1½″ connection, noise level 63 dB(A) — the lowest in the range
- Power supply 400 V / 3 / 50 Hz, WALTER CONTROLLER control unit
Who it suits
Suitable for operations where the compressor runs most of the shift and demand fluctuates during the day. The inverter adjusts the speed to consumption, so the machine does not waste energy during lower demand.
When to choose a different model
Won't it run entire shifts?
The single-stage SF 22 KSP has the same power input, weighs 418 kg, and at 8 bar delivers up to 4 m³/min. Two-stage compression pays off mainly with long-term operation.
Need more air
SF 30 DSP has the same two-stage block and at 8 bar delivers up to 5.86 m³/min, i.e. 40% more. The cabinet is somewhat larger: 1,610 × 1,043 × 1,380 mm.
What the parameters imply — calculated values
The values are calculated from the maximum air delivery at 8 bar and serve for comparing models with each other, not as a guaranteed value.
Frequently asked questions
- Why does the SF 22 DSP only offer pressures of 8 and 10 bar?
- This model is only manufactured for these two pressures. 13 bar is available starting with the SF 37 DSP.
- How much room does the machine take?
- The footprint is 1,500 × 1,037 mm, the height is 1,273 mm, and the weight is 738 kg. Leave free space around the housing for cooling air intake and for servicing.
The machine is covered by a 7-year warranty on the entire machine. Warranty terms, maintenance, and a comparison of all 13 models can be found in the category WALTER SF DSP screw compressors: two-stage compression.
Ventilek advises
Two-stage compression pays off the most for machines that run full shifts. For operation of one hour a day, it is unnecessarily sophisticated.
Additional parameters
| Category: | Air compressors |
|---|---|
| Warranty: | 7 let |
| Compressor type: | Screw compressor |
| Pressure: | 8 bar, 10 bars |
| Air delivery: | 4 200 l/min |
| Pressure vessel volume: | It isn't |
| Connecting: | 1 1/2" |
| Motor power: | 22 kW |
| Mains voltage: | 400/50 V/Hz |
| Lubrication: | Oleic |
| Noise: | 63 dB(A) |
| Weight: | 738 kg |
| Engine: | Electric |
| Drive: | Direct |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Stationary |
| Inverter: | Yes |
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